A User-Centered Design Approach to Physical Motion Coaching Systems for Pervasive Health
N. Ukita, D. Kaulen, C. Röcker, in: A. Holzinger, C. Röcker, M. Ziefle (Eds.), Smart Healthf: Open Problems and Future Challenges, Springer, Heidelberg, 2015, pp. 189–208.

Towards an Automatic Motion Coaching System: Feedback Techniques for Different Types of Motion Errors
N. Ukita, D. Kaulen, C. Röcker, in: A. Holzinger,  Institute for Systems and Technologies of Information, Control and Communication (Eds.), Proceedings of the International Conference on Physiological Computing Systems (PhyCS’14),  SCITEPRESS ,  [S.l.] , 2014, pp. 167–172.